Finding the Fourth Proportional to 657,610.16, 907,404.68 and 399,352.80
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Solution
The fourth proportional to 657,610.16, 907,404.68 and 399,352.80 is: 551,047.75
Step by Step Solution
- Step 1: Write the proportion equation
657,610.16 : 907,404.68 = 399,352.80 : x - Step 2: Convert to fraction form
657,610.16/907,404.68 = 399,352.80/x - Step 3: Cross multiply
657,610.16x = 907,404.68 × 399,352.80 - Step 4: Simplify right side
657,610.16x = 362,374,599,691.10 - Step 5: Solve for x
x = 362,374,599,691.10/657,610.16 - Step 6: Final answer
x = 551,047.75
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.